I never post anything on Facebook about my drinking problem, I try to keep Facebook simply as a medium to interact with my family and friends, and when I need help and advice and encouragement for my alcoholism I come here to SR. Facebook is a wonderful thing at times, but also it can cause a lot of problems when it's used wrong, and since it is essentially a social network site where all you're friends can see what you post you can't really expect people not to reply or comment on something you post.
But I hope you resolve the problem :-)